(noun) the first letter and first vowel of the modern English alphabet

(noun) any of several speech sounds represented by this letter, in English as in take, bag, calm, shortage, or cobra

(noun) the first in a series, esp the highest grade or mark, as in an examination

Use "a" in a sentence

"Not that it makes it any better, but I'm pretty sure the 'big a*& cake' is a riff on a chain a prominent rapper wore, with a medallion that had ' big a#$ chain'."

"So, having argued for a second root for sit that was *es- (which they relate to Sanskrit a:s-, Avestan a:s-/a:h-, Hittite e-, and Greek he:stai 'sits'), they then suggest a connection to Hurrian a- and Urartean a-, which then suggests a connection to Proto-Uralic *ase- (there should be an acute accent over the s)"

"For this reason the tube, TT ', is provided with a notch opposite the piece _a m l_, and the two arms, _a_ and _m_, of the latter are shaped like a V, as may be seen in part in the plan in Fig. 2."